The vulnerability identified as CVE-2025-5803 involves a Missing Authorization flaw in the VikBooking Hotel Booking Engine & PMS (versions <= 1.8.2). This means that certain operations within the software can be performed without proper authorization checks, potentially allowing unauthorized users to modify data or perform restricted actions. The CVSS vector indicates the vulnerability is remotely exploitable over the network without privileges or user interaction, with impact limited to integrity loss and no confidentiality or availability impact.

The impact of this vulnerability is limited to integrity, meaning unauthorized users may be able to alter data or perform unauthorized actions within the VikBooking system. There is no reported impact on confidentiality or availability. The medium severity score reflects the moderate risk posed by this flaw, as it does not allow for remote code execution or data disclosure but can affect the correctness of the system's data or operations.

No patch or official fix information is currently available for this vulnerability. Since the product is not cloud-hosted, remediation depends on the vendor releasing an update or users applying a fix once available. Until then, users should monitor vendor advisories for updates. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.